Jeep, Chrysler, and Dodge Drive Cycle
For all drive cycles, make sure the check engine light (MIL) is off.
All Monitor Drive Trace
Pre-Conditioning Requirements:
>> MIL must be off
>> Cold start (Note: cold start temperature is undefined)
Driving Procedure :
1) Warm engine up for five minutes (must reach closed loop)
2) Drive (with steady throttle) at a speed between 40 and 60 mph for 8 minutes.
3) Stop and idle for 3 minutes.
4) Drive (with steady throttle) at a speed above 20 mph for 2 minutes.
5) Turn key off, leave off for ten minutes (to run O2 sensor heater monitor).
Note: Due to the limited preconditions provided with this drive trace, NCVECS recommends using the monitor specific drive traces for Chrysler vehicles.
Catalyst Monitor Drive Trace
Pre-Conditioning Requirements:
>> MIL must be off.
>> No DTCs present.
>> Fuel level is between 15% and 85% full.
>> ECT above 70º F.
>> Engine must have run at least 90 seconds
>> Engine between 1,350 & 1,900 rpm.
Driving Procedure :
1) Idle vehicle for five minutes (to reach closed loop operation).
2) Drive with a steady vehicle speed between 30 and 45 mph for 2 minutes.
EGR System Monitor Drive Trace – Vacuum controlled
Pre-Conditioning Requirements:
>> MIL must be off.
Driving Procedure :
1) Idle vehicle for five minutes (to reach closed loop operation).
2) Drive with a steady vehicle speed between 40 & 60 mph for 8 minutes.
EGR System Monitor Drive Trace – Electronic
Pre-Conditioning Requirements:
>> MIL must be off.
>> MAP must be between 0-60 KPa.
>> Engine speed between 500-850 rpm.
>> ECT is above 180º F (90º C).
>> No misfire temporary (pending) or matured fault present.
>> A/C clutch, PS Switch and Cooling fans do not change state (turn off).
Driving Procedure:
1) Idle vehicle for five (5) minutes (to reach closed loop operation).
2) Drive with a steady vehicle speed between 40 & 60 mph for 2 minutes.
3) Idle vehicle for three (3) minutes.
Note: This monitor evaluates EGR flow based on a change of engine roughness (idle stability). Conditions causing un-stable idle will prevent this monitor from running.
Evaporative System Monitor Drive Trace
Trace 1: Standard Type – Make sure that your fuel level is between 50% and 85% full.
Idle for 5 minutes
Smoothly accelerate and maintain a speed between 30 to 45 mph for 2 minutes.
Trace 2: Leak Detection Pump
From 6-8 hours of the vehicle being off (cold soak), idle for 5 minutes
Drive in city traffic naturally with stops and acceleration for 5 minutes.
Stop. Idle vehicle for 4 minutes.
O2 Sensor Monitor Drive Trace
Idle for 5 minutes
Smoothly accelerate and maintain a speed above 25 mph for 2 minutes.
Stop and idle for 30 seconds.
Smoothly accelerate and maintain a speed between 30 to 40 mph
Repeat idle and acceleration to 30-40 mph five times.
O2 Sensor Heater Monitor Drive Trace
Idle for 5 minutes, then shut the engine and leave the vehicle off for 10 minutes.
When the monitors are completed, you are ready to go to the smog station.
Source: https://img.neons.org/AGN/chrysler_drive_cycle.pdf